E9 T3 Hi-Amp 150A Circuit Breaker with Manual Reset - Compact 150 Amp

In this review the E9 T3 Hi-Amp 150A circuit breaker is evaluated for boating, RV and truck accessory circuits where high interrupt capacity and a reliable manual reset are required. The bottom line: this Type III breaker is built for installers who need a compact, waterproof 150 amp protection device that is ignition protected and easy to reset after a trip or overload. Reviewers note it is especially useful for trolling motors and auxiliary systems because of its simple switch button and solid construction.

Key Features

• 150 Amp Capacity: Provides high-current protection for accessory circuits such as trolling motors, battery chargers and DC audio systems.
• Manual Reset and Switch Button: Lets users quickly restore power after a trip without replacing fuses, saving time during field repairs.
• Wide Voltage Range: Operates across 12V to 48V DC so it fits common marine, RV and commercial vehicle electrical systems.
• Waterproof IP67 Housing: The UL rated thermalplastic enclosure resists moisture and dust for use in exposed bilge or engine compartment locations.
• High Interrupt Capacity: Rated to interrupt 2,500A at 14Vdc and 1,500A at 48Vdc, reducing risk during heavy short-circuit events.
• Temperature Rated: Works from -32oC to 82oC, making it suitable for harsh climates and vehicle engine bays.

Who It's For

This breaker is aimed at vehicle and marine DIYers, electricians and fleet technicians who need a robust, manual-reset protection device for high-draw accessories. It is a practical choice for owners installing or replacing protection on trolling motors, auxiliary power lines, battery chargers and DC audio systems where a compact, ignition protected breaker is preferred.

Those who should look elsewhere are installers who need automated electronic trip/reset behavior, integrated meters or breakers rated above 150 amps. For applications requiring remote reset or monitoring, a breaker with telemetry would be a better fit.

Pros & Cons

Pros

• Solid build and ignition-protected housing that meets S.A.E. and UL1500 standards for vehicle and marine use.
• High interrupt capacity for safety in high-current faults, providing confidence in heavy-duty installations.
• Compact, lightweight design that simplifies mounting in tight spaces like bilges and dash panels.
• Easy manual reset via the switch button, which customers report is simple to operate after a trip.

Cons

• Durability reports are mixed among users, so heavy vibration environments should be checked after installation.
• No remote reset or status indicator, so it requires physical access to reset after tripping.

Specifications

Type	Type III manual reset
Current Rating	150 Amp
Voltage Range	12V - 48V DC
Interrupt Capacity	2,500A @ 14Vdc; 1,500A @ 48Vdc
Housing	Thermalplastic UL 94V-0, Waterproof IP67
Operating Temp	-32oC (-25oF) to 82oC (180oF)
Standards	S.A.E. J1625, J1171, UL1500 (Ignition Protected)

Our Verdict

The E9 T3 Hi-Amp 150A breaker is a practical, value-oriented choice for marine and vehicle accessory protection, delivering high interrupt capacity, waterproof construction and a user-friendly manual reset. It is recommended for DIY installers and fleet technicians who need dependable 150 amp protection without remote features, and it represents good value for typical trolling motor and auxiliary circuit use.

Frequently Asked Questions

Can this breaker be used with trolling motors?
Yes, customers commonly use it to protect trolling motors and other high-draw accessories within the 12V-48V range.

Is the housing waterproof for marine use?
Yes, the thermalplastic housing is rated IP67 and UL 94V-0 for moisture resistance and ignition protection.

Does it support remote reset or monitoring?
No, this model is a manual-reset breaker with a local switch button and has no remote reset or telemetry.